Finding the Fourth Proportional to 72,774.07, 100,428.06 and 40,943

Step by Step Solution

1. Step 1: Write the proportion equation
   72,774.07 : 100,428.06 = 40,943 : x
2. Step 2: Convert to fraction form
   72,774.07/100,428.06 = 40,943/x
3. Step 3: Cross multiply
   72,774.07x = 100,428.06 × 40,943
4. Step 4: Simplify right side
   72,774.07x = 4,111,826,060.58
5. Step 5: Solve for x
   x = 4,111,826,060.58/72,774.07
6. Step 6: Final answer
   x = 56,501.25